Support for electrical conductors.



: i PATEN'IED DEG; 22,1903. R. ORR & J. MORRISON, SUPPORT FOR ELECTRICALGONDUGTORS.

APPLIOATION FILED JAN. 9, 1903. v

' 2 SHEETS-SHEET 1- R0 MODEL.

EEQW No. 747,470. PATENTED DEC. 22, 1903..

..R. ORR & 'J. MORRISON.

SUPPORT FOR. ELECTRICAL GONDUGTORS. APPLICATION FILED JAN. 9, 1903.

H0 MODEL. 2 SHEETS-SHEET 2 7 WM// ///7V 0 7 iv I 7v UNITED STATESPatented December 22, 1903.

PATENT OFFICE.

ROBERT ORR AND JOHN MORRISON, OF NEW YORK, N. Y.

SUPPORT FOR ELECTRICAL CONDUCTORS.

SPECIFICATION forming part of Letters Patent N 0. 747,470, datedDecember 1903- Application filed January 9, 1903. Serial No. 138.392.(No model.)

' pertains to make' and use the same.

This invention relates to devices for sup-- porting electricalconductors; and it consists of the novel construction and peculiar ar-;

rangement of a supporting cross-wire-gripping member and aconductor-gripping member, as will be hereinafter described, an

stated in the claims.

In the drawings, Figure 1 is side elevation of the conductor-grippingmember, showing the supporting cross-Wire-gripping member in endelevation; Fig. 2, a side elevation of the supportingcross-wire-gripping member, showing the conductor-gripping member in endelevation; Fig. 3, a top plan view; Fig. 4, a vertical sectional view online 4 4 of Fig. 1; Fig. 5, a longitudinal sectional view on line 5 5 ofFig. 1; Fig. 6, an end elevation of the conductor member; Fig. 7, avertical longitudinal section on line 7 7 of Fig. 6; Fig. 8, aperspective view of one of the clip .or clamp jaws; Fig. 9, a similarview of the other clip or clamp jaw, Fig. 10, a perspective view of akey for forcing in the clip or clamp, and Fig. 1O a modified form of thekey-operating point.

Referring to the several views, the letter a indicates the supportingcross-wire-gripping member, and b the conductor-gripping member. The twomembers are of similar construction and are arranged transversely toeach other. Each member is provided in its longitudinal edge with agroove 0, the inner and side walls of said groove gradually contractingtoward one end, as shown in Figs. 4, 5, and 7, to form a wedge-shaperecess, and said side walls are provided with oppositely disposed andgradually contracting grooves d d for a purpose hereinafter specified.Seated in the wedge-shape groove 0 of each member is a wedge-shape clipor clamp f, composed of two jaws f and f Each jaw is provided with alongitudinal-and gradually-contracting rib or tongue g, which fits intoone of the grooves d and the two jaws are detachably joined together bypins hit. The outer longitudinal edge of each jaw is provided with aconcave gripping-face 1), so that when united together the two concavefaces will grip and securely hold the conductor 1 and the supportingcross-wire 2 when the clips are forced into position. The inner edge ofone of the jaws is provided with aseries of teeth 10 and one of the sidefaces of each member is provided with a circular aperture m for theinsertion of a key n,-(shown in Fig. 10,) which is formed with a-boss orhub 12., havingprojecting wards n adapted to engage the teeth is of thejaw. Projecting from the point of juncture of the wards n is a post n(shown in Fig. 10*) and opposite the aperture is is a small hole 0 forreceiving the post a said hole serving as a bearing for the key whenemployed to force the clip or clamp in tightly-wedged position. Insteadof providing the key with the post 01. and the memberwith the hole 0 theinner wall of the groove 6 may be provided with teeth p to be engaged bythe wards n and serve as the bearing for the key, or both the hole o-andthe teeth 10, and consequently the post 12?, may be dispensed with andthe circular aperture 'm made to serve as the bearing for the key byhaving the hub or boss thereof of a size to fit said aperture; buteither of the first two methods are preferable, as they afford a firmerbearing for the manipulation of the key.

' In uniting the two members together weprefor to provide the grippingmember that is supported by the cross-wire with a. recess r and theconductor-gripping member withahead s on the first-mentioned member withthe recess, as is evident, said head in either event being adapted to bereceived within said recess and firmly supported by a suitableinsulating material 15, which material fills the space surrounding thehead 5 andis securely held within said recess by an inwardly-extendingflange '0,

The longitudinal rib or tongue of one of bent over upon the edge of themember atone side, as shown in Fig. 5, to prevent the accidentaldisplacement of the clip or clamp.

The operation of the device will be readily understood without furtherexplanation other than to state that by inserting the key in theaperture m and turning it the clip or clamp may be quickly and readilyforced to wedged position and that by making the clip or clamp wedgeshape its entrance into the groove is greatly facilitated.

Various modifications or changes in the construction of our improveddevice besides those herein mentioned may be made without departing fromthe spirit of the invention or sacrificing the principle thereof.

Having thus fully described our invention,

- what we claim, and desire to secure by Letters Patent, is-- 1. Adevice for supporting electrical conductors, consisting of two connectedmembers, each member being provided with a wed ge-shape groove, and awedge-shape wiregripping clip or clamp adapted to be secured in saidgroove.

2. A device for supporting electrical con ductors, consisting of twoconnected members, each member being provided with a wedgeshape recesshaving oppositely-disposed grooves in its side walls, and a wedge clampprovided with a series of teeth, and a device for engaging the teeth toforce the clip or clamp into wedged position.

5. In a device for supporting electrical conductors, the combination oftwo members connected together, one of said members being provided witha recess having an inwardly-extending flange, and the other memberprovided with a head extending into said recess and surrounded by aninsulating material, each member being provided with a wedge-shaperecess, and a wedge-shape wiregripping clip or clamp seated in saidrecess.

In testimony whereof we aifix our signatures in the presence of twowitnesses.

ROBERT ORR. JOHN MORRISON. Witnesses:

FRANK TOUSEY, JOHN PULLMAN.

